Gut Hormone Response After Paleolithic-type Meals

Inclusion Criteria: * Body Mass Index (BMI) 18-27 inclusive * Apparently healthy: no medical conditions which might affect study measurements as judged by Leatherhead physician based on a health questionnaire) * Having general practitioner * Reported dietary habits: no medically prescribed diet, no slimming diet, used to eat 3 meals a day, no vegetarian * Reported intense sporting activities less than 10h/w * Reported alcohol consumption less than 21units/w * non-smoking * A fasting capillary blood glucose value within the local normal reference value: 4-6.5 mmol/L measured by finger prick Exclusion Criteria: * Use of medication which interferes with the study measurements (as judged by the study physician) * Being an employee of Unilever or Leatherhead Food Research * Scoff questionaire score ≥ 2 * Eating habit questionnaire ≥ 14 * Smoking * Dislike, allergy or intolerance t the test meals or the ad libitum meal * Reported participation in another nutritional or biomedical trial 3 months before pre-study examination or during the study * Reported participation in night shift work two weeks prior to the pre-study investigation during the study. Night work is defined as working between midnight and 06.00 AM